Shoujo Ramune

Based on the erotic game by Tanuki Soft. Kiyoshi Tachikawa runs a candy store located in a small town on the outskirts of Tokyo. He had quit his previous job to get away from the commotion of a major city and now enjoys his days surrounded by little girls. Kiyoshi's shop is regularly visited by three girls in particular: Chie Sayama, Tenka Adachi, and Komako Semenovich. Due to his friendly and easygoing demeanor, the not-so-innocent girls quickly take to Kiyoshi, seeking his attention and help with their problems. They soon develop romantic feelings toward him and gladly leave their bodies in his care, passing time in his house by indulging in sexual pleasures. (Source: MAL Rewrite)

Garden

Garden is a place (maybe another world) created for the solely purpose of accepting every sexual actions between its participants, allowing them to fulfill their deepest sexual desires and find eternal happiness, which you'd be unable to discover on earth.

A-Sized Classmate

A group of school children who are studying a group together to help two friends who are below average. But when Riko comes home first, only Nao is alone in the room and also with his two male friends. In the middle of talking about pervert things, they began to wonder with a real sense of sex. (Source: Nekopoi and Has Been Translated and Edited)

Kite

Sawa is a school girl, an orphan, and an assassin. She is being controlled by a corrupt cop who gives her targets to kill, detailing to her the crimes these men have committed in order to justify their death. Some of his power over Sawa has to do with her deceased parents and the promise of revenge. When another orphan, a teenage boy called Oburi, is brought in to assist Sawa, the two teenage killers form a bond of sorts. As they heal each other's emotional wounds, they begin to dream of a life that would not be spent under the shadows of murder. (Source: Anime News Network) Note: Originally released in Japan as a 2-episode OVA, the series has seen numerous re-edits and releases that exist in several versions: Japanese Releases: • A KITE</b>, released February-December 1998 - Original 2 episode OVA. • A KITE INTERNATIONAL VERSION</b>, released July 2000 - Re-edited version combining the episodes into a 45 minute OVA and removing the sex scenes entirely. • A KITE PREMIUM COLLECTORS VERSION</b>, released December 2007 - Bundle containing both Vols. 1+2 and INTERNATIONAL version. • A KITE Special Edition</b>, released April 2015 - Digitally restored Blu-ray re-release with smaller censorship mosaic. North American releases: • Kite</b>, released April 2000 - Based off of the international version, the sex scenes are removed entirely and presented as 1 combined episode. • Kite: Director's Cut</b>, released January 2002 - Released on Media Blasters' Kitty Media (Adult) label, restoring the sex scenes, save for ~12 seconds of material involving sex with a minor, also presented as 1 combined episode. • Kite: Special Edition Uncut</b>, released September 2004 - Also on Kitty Media, restoring the previously removed footage and presented as 2 episodes like the original. For simplicity sake, we are only counting the first OVA release in this entry.</i>